Symptoms

When attempting to Install the Database Silently without response file, the following error occurs:

ERROR

Preparing to launch Oracle Universal Installer from /tmp/OraInstall2013-03-27_12-25-07PM. Please wait ...[FATAL] [INS-35341] The installation user is not a member of the following groups: [null, null, null] CAUSE: The installation user account must be a member of all groups required for installation. ACTION: Ensure that the installation user is a member of the system privileges operating system groups you selected.